A permanent magnet loudspeaker is equipped with a10 ohm voice coil wound on a tube 1 inch in diameter. Theflux density in the air gap is 10,000 lines per square inch. If the impedance of the voice coil is a pureresistance, what will be the maximum thrust delivered to the core if the impressed signal is 20 dB above 0.005watt?

A permanent magnet loudspeaker is equipped with a10 ohm voice coil wound on a tube 1 inch in diameter. Theflux density in the air gap is 10,000 lines per square inch. If the impedance of the voice coil is a pureresistance, what will be the maximum thrust delivered to the core if the impressed signal is 20 dB above 0.005watt?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

See similar textbooks

Similar questions

The single - phase ac voltage controller with inductive load. Plot the waveform of output voltage and voltage in each thyristor if the B = 10 degree and delay angle (alpha) in both thyristor is 1- (30 degrees) 2- (90 degrees) 3- (120 degrees)
Create a circuit diagram for the given armature: Winding 1: 4 pole, 11 slots, 11 commutator segments, double layer, progressive, simplex WAVE winding Show the solutions
Calculate the reactance voltage for a machine which runs at 900rpm number of commutator segments is 65, brush width is 1.74 (in commutator segments), coefficient of self induction is 153 the conductor current is 27A.
Tring to solve this MOSFET question but not sure how. Need to find the missing components value. (Given Answer : RD = 4.27 kohm R1=28.075 kohm R2=8.77 kohm)
How many parallel paths are there in the following armature windings: (a) six pole duplex-wave? (b) six-pole triplex-wave? (c) eight-pole simplex-wave? (d) eight-pole duplex-wave? (e) eight-pole triplex-wave? (f) eight-pole quad ruplex-wave?
Give the excitation table and transition table. State diagram too. K map too. Correct answer only
Find the driving point impedance.( need only handwritten solution .otherwise downvote.)
4. Explain the relationship between back emf E, terminal voltage V and coil voltage drop IR in DC motor and generator respectively. i. Describe how the field strength affect the performance of DC motor and generator. ii. Explain how an external resister changes the DC motor and generator performance.
QUESTION 3 A Single Phase 220v,2KW Heater is connected across a Single phase 60HZ Supply with 311 Volts peak through an SCR .For firing delay of 600. calculate : Power absorbed by the Heater Element • Conduction angle • Extinction angle. • Turnoff time. • Draw the waveforms
With the aid of power-load angle curves explain in details i) An electronic governor’s response to frequency changes resulting from changing loads.
(ii) Determine the range K to keep the system stable using the Routh-Hurwitzcriterion.
What is fusing factor ?